ECAT Chemistry Chemical Equilibrium Test Online

Chemistry Chemical Equilibrium MCQS Online Test

ECAT Chemistry Chemical Equilibrium Chapter Online Test

Total Questions: 63
Time Allowed: 30 Minutes
Total Marks: 63
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Chemistry Chemical Equilibrium Test

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Chemistry

1. The rate at which a substance reacts is directly proportional to its active mass and the rate of reaction is directly proportional to the product of the active mass of reacting substances is known as

2. Who studied the effect of temperature on equilibrium?

3. Which of the following is more acidic?

4. A buffer solution can be prepared by mixing

5. In reversible reactions, if the forward reaction occur very fast then reactant (s) is (are) __________

6. Two moles of HI was heated in a sealed tube at 440°C till the equilibrium was reached. HI was found to be 22% decomposed. The equilibrium constant for dissociation is

7. PH of human blood is

8. Units of Kc is

9. When pressure is applied to the equilibrium system Ice ⇌ Water? Which of the following phenomenon will happen?

10. At certain temperature, 50% of HI is dissociated into H₂ and I₂ the equilibrium constant is

11. Reaction which proceed in both the directions is called

12. In which of the following cases, the reaction goes farthest to completion?

13. Which one of the following is a buffer solution?

14. If rate of concentration of reaction is equal to rate of concentration of products in reversible reaction the __________

15. The relationship between Kp and Kc is give by

16. Kc > Products / Reactants favours

17. If a buffer solution of higher PH than seven is to be made we use

18. Which of the following factors will favour the reverse reaction in a chemical equilibrium?

19. The equilibrium will shift towards right by increasing ___________ of reactants

20. When rate of forward reaction is equal to rate of backward reaction, then the equilibrium established is called

21. For the reaction 2A(g) + B(g) ⇌ 3C(g) + D(g) two moles each of A and B were taken into a flask. The following must always be true when the system attained equilibrium

22. When ever a week a base is dissolved in water, it gives its conjugate acid similarly a weal acid in water products its conjugate base. The conjugate acid base pair is stated by

23. The equilibrium constant in a reversible chemical reaction at a given temperature

24. Temperature for preparation of SO₃ is

25. A basic Buffer solution can be prepared by mixing


 

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